I am an agriculture engineer
I am an environmental economist
I am an environmentally-inclined person
I was one of the first to give lectures about the environment
I Reduce-Reuse-Recycle to the point of boredom
I etc, etc.....
So why am I not a member of the Green Party?
Because if anything, I do not want to feel someone's "career after advertising", and do not want to encourage someone who is a big shot in the ad world to make a cross-over to politics (his ego is large enough as it is!).
Still, the announcement above (which comes from - surprise!!! - Grey) plays on words by saying "Green is the red line"... And invites you to a green and entertaining day, etc, etc....